Publicación:
Searching for a Quantum Critical Point in Rh doped ferromagnetic Ce2. 15Pd1. 95In0.9

cnea.localizacionCentro Atómico Bariloche
cnea.tipodocumentoARTÍCULO CIENTÍFICO
dc.contributor.authorSereni, J.G.
dc.contributor.authorGiovannini, M.
dc.contributor.authorGómez Berisso, M.
dc.contributor.authorSaccone, A.
dc.contributor.cneaproductorGerencia Física. Departamento Materia Condensada. División Bajas Temperaturas
dc.date.accessioned2024-05-07T13:37:21Z
dc.date.available2024-05-07T13:37:21Z
dc.date.issued2012-00-00
dc.description.abstractLow temperature magnetic and thermal (Cm) properties of the ferromagnetic (FM) alloys Ce2.15(Pd1−xRhx)1.95In0.9 were investigated in order to explore the possibility for tuning towards a quantum critical point (QCP) by doping Pd with Rh. As expected, the magnetic transition decreases from T = 4.1K at x = 0 with increasing Rh concentration. However, the phase boundary splits into two transitions, the upper being antiferromagnetic (AF) whereas the lower FM. The AF phase boundary extrapolates to TN= 0 for xcr ≈ 0.65 whereas the first order FM transition vanishes at x ≈ 0.3. The quantum critical character of the TN → 0 point is inferred from the divergent T dependence of the tail of Cm/T observed in the x = 0.5 and 0.55 alloys, and the tendency to saturation of the maximum of Cm (TN)/T currently observed in exemplary Ce compounds when TN → 0. Beyond the critical concentration the unit cell volume deviates from the Vegard's law in coincidence with a strong increase of the Kondo temperature.
dc.description.institutionalaffiliationFil.: Sereni, J.G. Comisión Nacional de Energía Atómica. Instituto Balseiro. Laboratorio de Bajas Temperaturas; Argentina
dc.description.institutionalaffiliationFil.: Gómez Berisso, M. Comisión Nacional de Energía Atómica. Instituto Balseiro. Laboratorio de Bajas Temperaturas; Argentina
dc.description.institutionalaffiliationexternalFil.: Giovannini, M. University of Genova; Italia
dc.description.institutionalaffiliationexternalFil.: Saccone, A. University of Genova; Italia
dc.description.recordsetsectionProducción científica
dc.description.recordsetseriesContribución a revistas científicas
dc.format.extent4 p.
dc.identifier.citationJ G Sereni et al 2012 J. Phys.: Conf. Ser. 391 012062
dc.identifier.doihttps://doi.org/10.1088/1742-6596/391/1/012062
dc.identifier.issn1742-6596
dc.identifier.urihttps://nuclea.cnea.gob.ar/handle/20.500.12553/5411
dc.language.ISO639-3eng
dc.publisherIOP Publishing
dc.relation.ispartofv. 391
dc.relation.ispartofseriesJournal of Physics: Conference Series
dc.rights.accesslevelinfo:eu-repo/semantics/openAccess
dc.rights.urihttps://creativecommons.org/licenses/by-nc-sa/4.0/
dc.subject.fordCIENCIAS NATURALES
dc.subject.fordCIENCIAS FÍSICAS
dc.subject.inisALEACIONES
dc.subject.inisFERROMAGNETISMO
dc.subject.inisLEY DE VEGARD
dc.subject.keywordAlloys
dc.subject.keywordFerromagnetism
dc.subject.keywordVegard law
dc.titleSearching for a Quantum Critical Point in Rh doped ferromagnetic Ce2. 15Pd1. 95In0.9
dc.typeARTÍCULO
dc.type.openaireinfo:eu-repo/semantics/article
dc.type.snrdinfo:ar-repo/semantics/artículo
dc.type.versioninfo:eu-repo/semantics/publishedVersion
dspace.entity.typePublication

Archivos

Bloque original

Mostrando 1 - 1 de 1
Cargando...
Miniatura
Nombre:
CNEA_BJ_ART_265.pdf
Tamaño:
1.12 MB
Formato:
Adobe Portable Document Format

Colecciones